PEO Underwriting Guide
Experience Modification

How Experience Modification Affects PEO Pricing

Your EMOD Factor Is a Direct Lever on Your Workers Comp Cost

Your experience modifier (EMOD) is one of the biggest levers in your PEO workers comp pricing. An EMOD above 1.0 means you pay more than your industry average. Below 1.0 means you pay less. The underwriter applies your EMOD directly to your base rate. Understanding how EMOD works tells you why your workers comp pricing is what it is and how to move it.

1.0

EMOD break-even point

3 years

Of claims history that builds your EMOD

20%+

Cost difference between 0.8 and 1.2 EMOD

Fixable

EMOD improves with better safety

What We Evaluate

Key Underwriting Factors

Claims Frequency

How often you have claims matters more than how severe they are. Frequent small claims raise your EMOD more than one large claim.

Claims Severity

The total cost of your claims versus your industry average also feeds your EMOD calculation. Severe claims push it up.

Industry Average

Your EMOD compares your claims to your industry average. A 1.0 EMOD means your claims match the average for your class codes.

Three Year Window

Your EMOD is built from three years of claims history, excluding the most recent year. Older claims eventually roll off.

Safety Programs

A documented safety program reduces claims over time, which lowers your EMOD and your workers comp pricing.

Open Versus Closed

Open claims with large reserves affect your EMOD differently from closed claims with final costs.

What EMOD Is

What an Experience Modifier Actually Is

Your experience modifier (EMOD or XMOD) is a number assigned by your state rating bureau that scales your workers comp base rate based on your claims history. An EMOD of 1.0 means your claims experience matches your industry average. Above 1.0 means your claims are worse than average, and you pay more. Below 1.0 means your claims are better than average, and you pay less. The underwriter applies your EMOD directly to your base rate.

  • EMOD is assigned by your state rating bureau, not the PEO
  • 1.0 means your claims match your industry average
  • Above 1.0 means you pay more than average
  • Below 1.0 means you pay less than average
  • It is built from three years of claims history
  • The underwriter applies it directly to your base rate
How It Affects Price

How EMOD Directly Scales Your Workers Comp Cost

The math is simple. Your base rate multiplied by your EMOD equals your modified rate. If your base rate is $5.00 per $100 of payroll and your EMOD is 1.2, your modified rate is $6.00. If your EMOD is 0.8, your modified rate is $4.00. That is a 50 percent difference in workers comp cost for the same business with the same payroll, driven entirely by the EMOD. This is why EMOD is one of the biggest levers in PEO pricing.

How to Improve It

How to Lower Your EMOD and Your PEO Pricing

Your EMOD is built from three years of claims history. You cannot rewrite the past, but you can improve your future EMOD by reducing claims starting now. Implement a documented safety program. Report claims promptly and manage them actively. Return injured employees to work quickly through light duty. Over time, fewer and smaller claims lower your EMOD, which lowers your workers comp pricing at every PEO you work with.

FAQ

Experience Modification FAQ

What is an experience modifier (EMOD)?

Your experience modifier is a number assigned by your state rating bureau that scales your workers comp base rate based on your claims history versus your industry average. An EMOD of 1.0 means your claims match the average. Above 1.0 means you pay more. Below 1.0 means you pay less.

How much does EMOD affect PEO workers comp pricing?

Your base rate multiplied by your EMOD equals your modified rate. An EMOD of 0.8 versus 1.2 can mean a 50 percent difference in workers comp cost for the same business with the same payroll. EMOD is one of the biggest single levers in your PEO pricing.

How is my EMOD calculated?

Your EMOD is calculated from three years of claims history, excluding the most recent year. The rating bureau compares your claim frequency and severity to your industry average. Frequent small claims raise your EMOD more than one large claim. The result is a number that scales your base rate up or down.

Can I lower my EMOD to get better PEO pricing?

Yes. Your EMOD is built from three years of history, so improvements take time to show. Implement a safety program, report and manage claims promptly, and return injured employees to work quickly. Over time, fewer and smaller claims lower your EMOD, which lowers your workers comp pricing at every PEO.
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